Namur plc digital input with fault protection and diagnostics. When the current is below 3,6 ma or above 21 ma this is interpreted as a sensor fault. Use stonel light read tester or use a 12 vdc power supply and an ammeter. The namur ne43 is a recommendation which gives a guideline how a sensor fault can be indicated to a control system by means of the 420ma signal. Nowadays, it is possible to obtain binary switching in proximity sensors simultaneous changes in the switch status of sensor and amplifier by using the latest technology while maintaining the standard voltage and current values. Typically used for intrinsically safe applications. Variable resistance output, namur en 50227 cylinder position indicators, strapon style plastic housing with pottedin cable permaprox qst permaprox accessories can be found on pages e17 and e18. Putting it simply, when a namur sensor sees a target, the resistance goes from low to high. Q45 namur sensors page 4 q45 namur glass fiber optic infrared, 880 nm visible red, 650 nm diffuse mode performance based on 90% reflectance white test card models range cable supply voltage output type excess gain beam pattern infrared, 880 nm 1 10 100 10 mm 0. Namur is a type of sensor output that gives an on or.
For the operation of intrinsically safe sensors in hazardous areas. Namur sensors must be operated with approved switch amplifiers. All the namur sensors can operate in connection with the following amplifiers. Furthermore, they can be connected to the electronic rotation controls crtp. When the cam is released be sure it slides fully onto the spline.
This one happens to be a proximity sensor, so it senses metal. Conforming to namur standards din 19234 prewired cable or connector models. A plc typically recognizes a standard 2wire dc sensor output by a current or voltage drop. Example 2 and 4 by interconnecting pins 8 and 11 the relay function is inverted, i. The namur atexiecex series inductive sensors are electronic proximity sensors whose input current is changed with the approach of a metal actuator see figs. The distributed control systems dcs working group addresses issues including the following topics in the context of its experience exchange, its concept developments, formulation of requirements to be met by automation solutions and its involvement in national and international standardisation. The hafner mnh 350 701is a single solenoid 52way valve with airspring return to control a double acting rotary actuator. Bernstein offers a wide range of sensors for monitoring and controlling machines in areas with a risk of explosion. A wide variety of namur proximity switch options are available to you, such as inductance sensor, current sensor, and capacitance sensor. Namur is an international user association of automation technology and digitalization in process industries.
Sensor supply, channel n a0 cc01 6es71936cp012ma0 3 di2 4 di3 5 di4 6 di5. The sensor varies the impedance across the sensor output, which passes 1 ma or less in the dark condition and 2 ma or more in the. How to connect a namur sensor to a switch amplifier. Proximity sensors and encoders can have namur output namur is a type of sensor output that gives an on or off indication. The q45ad9 series namur sensor is designed in accordance with din 19234 iecen 6094756 for operation via twowire connection to an approved apparatus controlled by the variable internal resistance of the sensor. N0530a switching amplifiers for namur sensors ifm electronic. A logic interface circuit, controller, plc, dcs, or intrinsically safe is barrier is needed to read these current levels.
Namur inductive sensors automation diamond technologies. Sick proximity sensors ensure the right view through nearly any conceivable material. Mm1260anzw0 mm namur magnetic proximity sensors current consumption, sensor is activated. When the sensor detects the target, the current flow through the sensor drops to less than 1. On the inside, namur sensors have different circuitry than standard 2wire dc sensors and need special treatment. Jun 07, 2016 choosing a backup generator plus 3 legal house connection options transfer switch and more duration. Namur ne43 analog output signal namur ne43 is a standard used to define the operating aoll and aoul values. To find the appropriate associated apparatus contact our technical department. All adjustments assume you are looking down on the top of the sensors. Namur the acronym for a european standards organization. Sensors with special characteristics namurinductive.
Digital namur signal from sensors in nonexplosive zones and explosive zones 1 and 2. Choosing a backup generator plus 3 legal house connection options transfer switch and more duration. Due to approvals required for hazardous environments, intrinsically safe sensor configurations require a. Namur was founded at leverkusen on november 3, 1949, as the body to represent the interests of the users of measurement and control technology in the chemical industry by such. Nowadays, it is possible to obtain binary switching in proximity sensors simultaneous changes in the switch status of sensor and amplifier by using the latest technology while. What is namur standard and why its allways reletad with. Sensors with special characteristics namurinductive sensors. Hafner namur flex an innovative system to convert a 52way into a 32way valve with air recirculation. Tida010044 namur plc digital input with fault protection.
Photoelectric sensor diffuse mode sensor q45ad9dlq 20200117t18. When the sensor detects the target, the current flow through the sensor. We have been representing the interests of our members for more than 65 years. Namur with protection by intrinsic safety ia, require associated apparatus. Minibeam miad9 namur series sensor original document 39616 rev. Digital electronic module 4di namur 6es71 4rd020ab0 manual, 032010, a5e0277348801 7 properties 1 1. The small size, low current, voltage and impedance values that characterise them allow their use in various applications in hazardous areas with explosive atmospheres consisting. On quick visual inspection, a 2wire namur sensor looks the same as a standard 2wire dc sensor. Together with mpa valves it forms a namurcompatible process interface with an. Scale drawing wiring 3d pdf pdf data sheet to the selector save for later compare.
Proximity sensors inductive high temperature type ia, m12. About 53% of these are sensors, 5% are other switches. A namur sensor is a nonamplified sensor that supplies two different signal levels depending upon switch state. Namur sensors and their interfaces digital input or amplifiers have to comply. Cylinder position sensors 2wire dc, requires remote amplifier 530 vdc variable resistance output, namur en 50227 cylinder position indicators, strapon style plastic housing with pottedin cable permaprox int permaprox accessories can be found on pages e17 and e18. Proximity sensors inductive high temperature type ia, m12, namur. The inductive sensors of the namur line have voltage and current maintained at a low level so that it can be used in potentially explosive environments such as intrinsic of protection. Digital electronic module 4di namur 6es714rd020ab0. Type ia, m12, namur high temperature proximity sensors inductive nickelplated brass housing sensing distance. Ive taken the liberty of wiring up the namur sensor and the power. This is also true for namur sensors, just at a different current or voltage value. Altp delayed type for 1 sensor or aln2 type for 2 sensors.
Nema rating an enclosure rating per nema standard 250. Wirebreak protection shortcircuit protection reverse polarity protection. Namur sensors include a variety of proximity sensors and industrial encoders. For the basics of comparator design, view the effective application of. Prism with dual module namur sensors wiring diagramconnector pinout to bench test a dual module namur sensor.
The sensor with protection by intrinsic safety ia require associated apparatus certified. A namur sensor is a 2wire proximity sensor that is usually powered by 8 vdc. When the target moves away from the sensor and is not detected, the current flow increases to above 2. The final user must use the products according with the instruction manuals supplied. A typical plc input card is not rated to supply exactly 5 ma of current at 8. Similar to the standard analog output signal, namur ne43 compliant transmitters are designed to output signals greater than the 4 to 20 ma ase signal, allowing for a small amount of signal saturation.
Use stonel light read tester or use a 24 vdc power supply. Namur 2 m silicone cable product description inductive proximity sensor with namur output in m12 housing for flush mounting. A valve terminal and remote io for the process industry for control cabinets in zone 2. Wiring connections miad9 series numar sensors are intrinsically safe only when used with certified intrinsically safe switching amplifiers and barriers.
Moling science and technology innovation center, no. Namur proximity sensorsensors,wireless sensor,proximity. This is the opposite in a manner of speaking to the action of a conventional limit switch where normally the resistance goes from high infinity to low connected when the switch is activated. M12x1 174 led m30x 365 led m30x 1,5n 365 m18x1 10 244 30 led v118x1 led 30 m12x1 174 led. This in turn dictates special requirements on the plc digital input designed to interface with such sensor with regard to accuracy, and reliability.
The function of limiting power is managed by the respective device and must be provided through a suitable isolation amplifier. A sensor fault is signalled by extending the range of the 420ma signal. A barrierswitch isolator is designed to supply power to the namur sensor, read the output state of the sensor and provide the desired. You need this to loosen or tighten the terminals on the barrier. Inductive sensors for explosive environments namur interface namur proximity sensors traditionally have a constant current path characteristic. Features rear of sensor, quickdisconnect model shown 1 only standard 2 m 6. There are different reasons why you may need a namur sensor. The input circuit between the sensor or mechanical contact and the switch isolator is suitable to be. Retroreflective sensor with polarization filter for clear object detection, miniature design with versatile mounting options, detects transparent objects, i. Discover the world of namur and get a deeper insight into the association.
Examples 1 and 3 the relay operates when the number of r. A threeposition switch facilitates the selection of various test conditions. This simulator imitates a namur proximity sensor by implementing a threeposition switch. Namur proximity switch, namur proximity switch suppliers. Namur user association of automation technology in. However, diffuse mode sensors do not detect the interruption of the. Namur sensor a 2wire variableresistance dc sensor whose operating characteristics conform to din 19 234.
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